CODEWITHSUNDEEP
iosobjective-cuiviewautolayoutconstraints
user5936834
user5936834

Reputation:

Constraints without using auto-layout?

I am not using auto-layout, and I want to know if I can specify constraints between a UILabel and a UITextView. I tried what is mentioned here, but I got an error View hierarchy unprepared for constraint, so I looked up for that and found this, the accepted answer says that the views I am trying to add constraints to must be the subviews, if that is correct how can I add constraints so that the X position of my UITextView is set according to the height of UILabel ? I will post a picture so that it will give you all a clear idea:

enter image description here

Now I don't know if the UILabel is a single line or a couple of lines, and I want my UITextView to adjust it's X-position accordingly. This is the code I added, since I just learned about it please let me know if it is correct:

NSLayoutConstraint *xConstraint=[NSLayoutConstraint constraintWithItem:self.tvNewsDetails attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:self.lblNewsTitle attribute:NSLayoutAttributeBottom multiplier:0.45 constant:0];

[self.tvNewsDetails addConstraints:@[xConstraint]];

Upvotes: 0

Views: 436

Answers (1)

parthiban
parthiban

Reputation: 93

First you set leading, trailing, top, bottom for UILabel. In right side corner attribute inspector Line = 0 and line breaks = word wrap

then set constraints leading, trailing, top, bottom for UITextview. if UITextview height is fixed size means set height for UITextview.

must place both the component in UIScrollview.

it will flexible, while label height will increase.

Upvotes: 1

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